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  1. 1. SPACE FOODS Dulani Shanika Perera University of Peradeniya Sri Lanka
  2. 2. What is space food?? “Space food is a variety of food products specially created and Processed for consumption of astronauts”
  3. 3. Characteristics • Must be nutritional • Easy to digest and palatable • Must be light • Properly sealed • Quick and easy to prepare and to clean up after • Bite-size portions to prevent crumbs in the cabin during space flight • Stability at room temperature, due to the limitations of refrigeration aboard the spaceship
  4. 4. Early space foods • First Americans to the space-Stored in toothpaste like tubes, Food in cubed , powdered and liquid form • First man to the space- his lunch consisted of a liquid paste and chocolate sauce • Was not enjoyable at all • Freeze dried foods had to be re-hydrated which fond an unpleasant task
  5. 5. Early Project Mercury food tube and dry bite-sized snacks with gelatin coating
  6. 6. But in later……….. • Squeeze tubes were eliminated • Bite-sized cubes were coated with gelatin to reduce crumbling, • freeze-dried foods were encased in a special plastic container to make reconstituting easier • improved packaging came improved food quality and menus
  7. 7. But now, space food has come a long way from freeze dried snacks and tube foods to warm pouches of savory shrimp cocktail and apples with black current juice!!
  8. 8. Shrimp cocktail
  9. 9. Modern space foods
  10. 10. Types of space food • Re- hydratable • Natural form • Intermediate moisture • Beverages • Thermo sterilized pouch • Thermo sterilized cans • Irradiated meat
  11. 11. Rehydratable Beef toast Spiced cereal Ex:- chicken soup, macaroni, rice , breakfast cereal
  12. 12. Intermediate moisture (IM) foods • Produced by restricting the amount of water available for microbial growth • water present is chemically bound with the sugar or salt Ex:- Dried peaches, pears, apricots dried beef Vacuum sealed Apricot
  13. 13. Natural foam food (NF) • They are ready to eat, packaged in flexible pouches Ex:- nuts, granola bars, cookies Granola bar
  14. 14. Irradiated (I) food • Beef steak is the only irradiated product currently used on Shuttle
  15. 15. Condiments • catsup, mustard, mayonnaise, taco sauce, and hot pepper sauce • Packaged in Polyethylene dropper bottles
  16. 16. Astronaut menu selection • Astronauts are given sample of food and beverages available at flight • Astronauts select their menu approximately five months before flight • Then shuttle dietitians analyze menus and give recommendations to correct any nutrient deficiencies based on the Recommended Dietary allowances
  17. 17. How much food they have? • 3.8 pounds of food, including 1 pound of packaging, per astronaut for each day • The astronauts get three meals a day, plus snacks • A back-up Safe Haven food system provides an extra 2,000 calories per day, per astronaut
  18. 18. How they eat • A meal tray is used to hold the food containers • It’s attached to an astronaut's lap by a strap or attached to a wall. • The tray also holds the food packages in place and keeps them from floating away in the microgravity of space.
  19. 19. Safe haven food • The Safe Haven food system is provided to sustain crewmembers for 22 days under emergency operating conditions resulting from an on-board failure • The Safe Haven food system will be stored at ambient temperatures therefore, the food must be shelf-stable. • Thermostabilized entrees and fruits, intermediate moisture foods, and dehydrated food and beverage are used.
  20. 20. EVA food • EVA means extravehicular activities • Consisting of food and drink for 8 hours (500 calories of food and 38 oz. of water per each EVA activity)
  21. 21. Future of space food • NASA plans to grow fruits and vegetables on space farms using hydroponic systems • 3D food printing